|• Type||Municipal council|
|• Total||4,015.6 km2 (1,550.4 sq mi)|
|Elevation||3,702 m (12,146 ft)|
|Population (2012 Census)|
|• Density||0.32/km2 (0.83/sq mi)|
|Time zone||CLT  (UTC-4)|
|• Summer (DST)||CLST  (UTC-3)|
|Area code(s)||(+56) 5|
According to the 2002 census of the National Statistics Institute, Colchane had 1,649 inhabitants (910 men and 739 women), making the commune an entirely rural area. The population grew by .0% (94 persons) between the 1992 and 2002 censuses. It has the country's highest rate of people living under the poverty line at 34.56% (Encuesta Casen, 2006).
Within the electoral divisions of Chile, Colchane is represented in the Chamber of Deputies by Mrs. Marta Isasi (Ind.) and Mr. Hugo Gutiérrez (PC) as part of the 2nd electoral district, which includes the entire Tarapacá Region.The commune is represented in the Senate by Fulvio Rossi Ciocca (PS) and Jaime Orpis Bouchon (UDI) as part of the 1st senatorial constituency (Arica and Parinacota Region and Tarapacá Region).